[jessriedel]

Yes, I agree. Its plausible to me nuclear power plants should have special protection during time of war.

The chief issue is that, unlike something like cultural artifacts, power plants have significant strategic military importance. Perhaps a rule that (a) fighting be confined outside a certain perimeter and (b) plant workers have special protected status like medics, and are required to obey shutdown orders if the invading military takes control of the perimeter (so that the invaders don't have incentive to physically destroy the plant).